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<Type Name="Bin" FullName="Gtk.Bin">
<TypeSignature Language="C#" Maintainer="Lee Mallabone, Miguel de Icaza" Value="public class Bin : Gtk.Container" />
<TypeSignature Language="ILAsm" Value=".class public auto ansi beforefieldinit Bin extends Gtk.Container" />
<AssemblyInfo>
<AssemblyName>gtk-sharp</AssemblyName>
<AssemblyPublicKey>
</AssemblyPublicKey>
</AssemblyInfo>
<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
<Base>
<BaseTypeName>Gtk.Container</BaseTypeName>
</Base>
<Interfaces>
</Interfaces>
<Docs>
<summary>A container with just one child.</summary>
<remarks>
<para>
A Bin widget is a <see cref="T:Gtk.Container" /> with just one
child. It is used to create subclasses, since it provides
common code needed for handling a single child <see cref="T:Gtk.Widget" />.
</para>
<para>
Many GTK+ widgets are subclasses of Bin, including <see cref="T:Gtk.Window" />, <see cref="T:Gtk.Button" />, <see cref="T:Gtk.Frame" />, <see cref="T:Gtk.HandleBox" />, and
<see cref="T:Gtk.ScrolledWindow" />.</para>
<para>
To place a child widget inside this container, use the
standard <see cref="M:Gtk.Container.Add" /> method.</para>
<para>
For the widget to be useful, it should participate in size
negotiation and size allocation using the events <see cref="E:Gtk.Widget.SizeAllocated" /> and <see cref="E:Gtk.Widget.SizeRequested" />.</para>
<para>
Sample follows.
</para>
<example>
<code lang="C#">
using System;
using Gtk;
//
// A simple Bin class: a simple container that adds padding.
//
class MyPadder : Bin {
int pad = 50;
Widget child;
public MyPadder ()
{
// To track our child widget.
Added += new AddedHandler (MyAdded);
// Participate in size negotiation
SizeRequested += new SizeRequestedHandler (OnSizeRequested);
SizeAllocated += new SizeAllocatedHandler (OnSizeAllocated);
}
//
// Invoked to query our size
//
void OnSizeRequested (object o, SizeRequestedArgs args)
{
if (child != null){
int width = args.Requisition.Width;
int height = args.Requisition.Height;
child.GetSizeRequest (out width, out height);
if (width == -1 || height == -1)
width = height = 80;
SetSizeRequest (width + pad * 2, height + pad * 2);
}
}
//
// Invoked to propagate our size
//
void OnSizeAllocated (object o, SizeAllocatedArgs args)
{
if (child != null){
Gdk.Rectangle mine = args.Allocation;
Gdk.Rectangle his = mine;
his.X += pad;
his.Y += pad;
his.Width -= pad * 2;
his.Height -= pad * 2;
child.SizeAllocate (his);
}
}
//
// Public property of the Padding widget
//
public int Pad {
get {
return pad;
}
set {
pad = value;
QueueResize ();
}
}
void MyAdded (object o, AddedArgs args)
{
child = args.Widget;
}
}
class Y {
static void Main ()
{
Application.Init ();
Window w = new Window ("Hello");
MyPadder x = new MyPadder ();
x.Pad = 100;
Button b = new Button ("Hola");
w.Add (x);
x.Add (b);
w.ShowAll ();
Application.Run ();
}
}
</code>
</example>
</remarks>
</Docs>
<Members>
<Member MemberName=".ctor">
<MemberSignature Language="C#" Value="protected Bin ();" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor() cil managed" />
<MemberType>Constructor</MemberType>
<ReturnValue />
<Parameters />
<Docs>
<summary>Protected constructor.</summary>
<remarks>Chain to this constructor if you have not manually registered a native <see cref="T:GLib.GType" /> value for your subclass.</remarks>
</Docs>
</Member>
<Member MemberName=".ctor">
<MemberSignature Language="C#" Value="public Bin (IntPtr raw);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig specialname rtspecialname instance void .ctor(native int raw) cil managed" />
<MemberType>Constructor</MemberType>
<ReturnValue />
<Parameters>
<Parameter Name="raw" Type="System.IntPtr" />
</Parameters>
<Docs>
<param name="raw">Pointer to the C object.</param>
<summary>Internal constructor</summary>
<remarks>
<para>This is an internal constructor, and should not be used by user code.</para>
</remarks>
</Docs>
</Member>
<Member MemberName="Child">
<MemberSignature Language="C#" Value="public Gtk.Widget Child { get; set; }" />
<MemberSignature Language="ILAsm" Value=".property instance class Gtk.Widget Child" />
<MemberType>Property</MemberType>
<ReturnValue>
<ReturnType>Gtk.Widget</ReturnType>
</ReturnValue>
<Parameters />
<Docs>
<summary>Accesses the one and only child widget of this Bin object.</summary>
<value>a <see cref="T:Gtk.Widget" /></value>
<remarks>
</remarks>
</Docs>
</Member>
<Member MemberName="GType">
<MemberSignature Language="C#" Value="public static GLib.GType GType { get; }" />
<MemberSignature Language="ILAsm" Value=".property valuetype GLib.GType GType" />
<MemberType>Property</MemberType>
<ReturnValue>
<ReturnType>GLib.GType</ReturnType>
</ReturnValue>
<Parameters />
<Docs>
<summary>GType Property.</summary>
<value>a <see cref="T:GLib.GType" /></value>
<remarks>Returns the native <see cref="T:GLib.GType" /> value for <see cref="T:Gtk.Bin" />.</remarks>
</Docs>
</Member>
</Members>
</Type>
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